Not great for use on the go & out of water falls or small sources of water - Platypus GravityWorks 2.0L Water Filter Complete Kit

This product will work great at base camp or where lakes are your source of water. I returned to get a pump where I can access water in tiny ponds or water falls, trickling sources as you may pass on a mountain hike. It does work fast, but is clumsy with shallow water sources.

This review was written in the old system and had content requirements that are different than reviews written today.